St. Charles County, MO

418 public highway bridges

St. Charles County Bridge Snapshot

St. Charles County, Missouri contains 418 public highway bridges in the FHWA National Bridge Inventory. Roughly 21.8% are rated “Good,” 51.7% “Fair,” 3.1% “Poor,” and 3.1% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in MO are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

418
Total Bridges
21.8%
Good
3.1%
Poor
3.1%
Structurally Deficient

Condition Distribution

Good
21.8% (91)
Fair
51.7% (216)
Poor
3.1% (13)
SD
3.1% (13)

All Bridges (418)

ST PETERS HOWELL R

Fair

Over: TRIB TO DARDENNE C

S 285 T 46 N R 4 E, St. Charles, MO

Built 2006 Load: 68.4 t ADT: 8,945

RT K S

Fair

Over: BRASSELS BR

S 8 T 46 N R 3 E, St. Charles, MO

Built 1993 Load: 68.4 t ADT: 45,001

OBERHELMAN RD

Fair

Over: DARDENNE CR

S 20 T 46 N R 1 E, St. Charles, MO

Built 1986 Load: 72.0 t ADT: 355

ZUMBEHL ROAD

Fair

Over: TRIB OF COLE CR

S 3280 T 47 N R 4 E, St. Charles, MO

Built 2022 Load: 74.7 t ADT: 20,000

MO 94 E

Fair

Over: BALTIC CR

S 1785 T 46 N R 3 E, St. Charles, MO

Built 2012 Load: 80.1 t ADT: 46,544

ELM ST

Fair

Over: BOSCHERT CR

S 2892 T 47 N R 5 E, St. Charles, MO

Built 2018 Load: 80.1 t ADT: 20,500

RIO VISTA DR

Fair

Over: CRYSTAL SPRINGS CR

S 2892 T 46 N R 5 E, St. Charles, MO

Built 2018 Load: 81.9 t ADT: 1,100

RT T S

Fair

Over: FEMME OSAGE CR

S 20 T 45 N R 1 E, St. Charles, MO

Built 1969 Load: 83.7 t ADT: 419

S 5TH ST

Fair

Over: CRYSTAL SPRINGS CR

S 2892 T 46 N R 5 E, St. Charles, MO

Built 2018 Load: 97.2 t ADT: 2,500

PITMAN HILL RD

Fair

Over: TRIB OF DARDENNE C

S 292 T 46 N R 3 E, St. Charles, MO

Built 1974 Load: 99.9 t ADT: 8,509

MO 94 E

Fair

Over: BR DARDENNE CR

S 18 T 46 N R 4 E, St. Charles, MO

Built 2012 Load: 99.9 t ADT: 46,544

OR 94 W

Fair

Over: BALTIC CR

S 1785 T 46 N R 3 E, St. Charles, MO

Built 2010 Load: 99.9 t ADT: 11,009

MEXICO LOOP RD W

Fair

Over: TRIB OF BELLEAU CR

S 33 T 47 N R 3 E, St. Charles, MO

Built 2006 Load: 99.9 t ADT: 200

CONCORDIA LN

Fair

Over: BOSCHERT CR

S 2892 T 46 N R 5 E, St. Charles, MO

Built 2019 Load: 99.9 t ADT: 2,700

RT T S

Good

Over: PERUQUE CR

S 30 T 47 N R 1 E, St. Charles, MO

Built 1969 Load: 17.1 t ADT: 4,928

MILL WOOD DR

Good

Over: SPENCER CR

S 9 T 46 N R 4 E, St. Charles, MO

Built 1975 Load: 22.5 t ADT: 1,500

US 61 N

Good

Over: MCCOY CR

S 145 T 47 N R 1 E, St. Charles, MO

Built 1961 Load: 22.5 t ADT: 27,539

SPENCER RD

Good

Over: NS RR

S 1799 T 47 N R 4 E, St. Charles, MO

Built 1996 Load: 27.0 t ADT: 5,000

RT P E

Good

Over: ENON BR

S 294 T 47 N R 2 E, St. Charles, MO

Built 2015 Load: 27.0 t ADT: 2,274

DEER CR DR

Good

Over: PERUQUE CR

S 19 T 47 N R 3 E, St. Charles, MO

Built 2016 Load: 28.8 t ADT: 600

RP MO370W TO IS70E

Good

Over: NS RR

S 29 T 47 N R 4 E, St. Charles, MO

Built 1994 Load: 31.5 t ADT: 437

W TERRA LN

Good

Over: PERUQUE CR

S 23 T 47 N R 2 E, St. Charles, MO

Built 1991 Load: 32.4 t ADT: 3,200

SCHAPER AD

Good

Over: PERQUE CR

S 29 T 47 N R 1 E, St. Charles, MO

Built 1993 Load: 32.4 t ADT: 455

ELM ST EXTENSION

Good

Over: OLD ELM PT RD, NS RR

S 24 T 47 N R 4 E, St. Charles, MO

Built 1992 Load: 32.4 t ADT: 8,430

MID RIVERS MALL DR

Good

Over: DARDENNE CR

S 1 T 46 N R 3 E, St. Charles, MO

Built 1990 Load: 32.4 t ADT: 20,000

FORISTELL RD

Good

Over: DARDENNE CR

S 22 T 46 N R 1 E, St. Charles, MO

Built 2000 Load: 32.4 t ADT: 1,035

O'FALLON RD

Good

Over: CROOKED CR

S 1669 T 46 N R 3 E, St. Charles, MO

Built 2004 Load: 32.4 t ADT: 7,100

CANAL ST

Good

Over: CANAL

S 1000 T 47 N R 5 E, St. Charles, MO

Built 2007 Load: 32.4 t ADT: 400

N NEW TOWN AVE

Good

Over: CANAL

S 1000 T 47 N R 5 E, St. Charles, MO

Built 2007 Load: 32.4 t ADT: 800

S NEW TOWN AVE

Good

Over: CANAL

S 1000 T 47 N R 5 E, St. Charles, MO

Built 2007 Load: 32.4 t ADT: 800

BARATHAVEN BLVD

Good

Over: TRIB OF DARDENNE C

S 1669 T 46 N R 3 E, St. Charles, MO

Built 2008 Load: 32.4 t ADT: 599

SALT RIVER RD

Good

Over: DARDENNE CR

S 1786 T 47 N R 4 E, St. Charles, MO

Built 2011 Load: 32.4 t ADT: 5,000

KLONDIKE PARK CT

Good

Over: SCHLUERSBURG CR

S 8 T 44 N R 2 E, St. Charles, MO

Built 2000 Load: 32.4 t ADT: 102

BROEMMELSIEK PARK

Good

Over: KRAUT RUN CR

S 28 T 46 N R 2 W, St. Charles, MO

Built 2015 Load: 32.4 t ADT: 100

N POINT PRAIRIE RD

Good

Over: COPPER CR

S 21 T 47 N R 1 E, St. Charles, MO

Built 2008 Load: 32.4 t ADT: 3,100

S POINT PRAIRIE RD

Good

Over: UNKNOWN CRK

S 10 T 46 N R 1 E, St. Charles, MO

Built 2018 Load: 32.4 t ADT: 319

CORPORATE CENTER D

Good

Over: SCHOTE CRK

S 1669 T 46 N R 3 E, St. Charles, MO

Built 1994 Load: 32.4 t ADT: 800

MONTRACHET DR

Good

Over: DARDENNE CR

S 3225 T 46 N R 3 E, St. Charles, MO

Built 2017 Load: 32.4 t ADT: 130

PAUL RENUAD BLVD

Good

Over: TRIB DARDENNE CR

S 61 T 46 N R 2 E, St. Charles, MO

Built 2005 Load: 32.4 t ADT: 2,214

DIETRICH RD

Good

Over: MCCOY CR

S 18 T 47 N R 1 E, St. Charles, MO

Built 2007 Load: 33.3 t ADT: 2,519

HOPEWELL RD

Good

Over: TRIB TO DARDENNE C

S 8 T 46 N R 2 E, St. Charles, MO

Built 2015 Load: 33.3 t ADT: 2,214

DAVID HOEKEL PKWY

Good

Over: OR 70, NS RR

S 28 T 47 N R 1 E, St. Charles, MO

Built 2019 Load: 33.3 t ADT: 4,000

IS 64 E

Good

Over: MISSOURI RVR, KATY TRAIL

S 35 T 46 N R 3 E, St. Charles, MO

Built 2013 Load: 34.2 t ADT: 37,898

NAHM RD

Good

Over: TRIB OF SEHRT CR

S 10 T 44 N R 1 E, St. Charles, MO

Built 2018 Load: 34.2 t ADT: 50

RT T S

Good

Over: SAM CR

S 7 T 46 N R 1 E, St. Charles, MO

Built 2018 Load: 34.2 t ADT: 4,306

MCHUGH RD

Good

Over: TRIB OF MCCOY CR

S 969 T 48 N R 1 E, St. Charles, MO

Built 2008 Load: 35.1 t ADT: 63

SONDEREN ST

Good

Over: BELLEAU CR

S 33 T 47 N R 3 E, St. Charles, MO

Built 2008 Load: 35.1 t ADT: 5,700

DUELLO RD

Good

Over: PERUQUE CR

S 32 T 47 N R 2 E, St. Charles, MO

Built 1999 Load: 36.0 t ADT: 3,494

ROCKY MOUND DR

Good

Over: DRY BR

S 24 T 47 N R 1 E, St. Charles, MO

Built 1999 Load: 36.0 t ADT: 800

RT Z S

Good

Over: DARDENNE CR

S 738 T 46 N R 1 E, St. Charles, MO

Built 2004 Load: 36.0 t ADT: 8,437

Read our methodology — how this data is sourced, computed, and verified.

Related

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial